Collapsible ball game practice device

ABSTRACT

A collapsible ball game practice device is comprised of a plurality of sections, each section above a lower section being substantially collapsible into the lower section. Detent structure is provided on an upper portion of each lower section and a lower portion of each upper section to secure each upper section when raised to its raised condition. A mounting structure is provided on the bottom of the lowermost section for releasably securing the device to a basketball playing surface. Arms may be angularly adjusted to various positions in two orthogonal directions. These adjustments may be made by two angularly adjustable structures located near the upper end of the arms. The arms may be collapsed and slid on a carrier into the uppermost section. A head structure may also be slid into the uppermost section. The sections may be collapsed such that all of them may be collapsed into the lowest section. A handle is provided in the top of the head structure for carrying the entire assembly. The collapsed device may be easily transported and/or stored. The device is particularly useful as a defensive dummy in practicing the games of basketball and volleyball.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation in part of and claims the benefit of U.S. patent application Ser. No. 12/214,463 filed Jun. 19, 2008 by the inventors herein and entitled COLLAPSIBLE BALL GAME PRACTICE DEVICE which application is a continuation of and claims the benefit of U.S. patent application Ser. No. 11/472,956 filed Jun. 22, 2006 by the inventors herein and entitled “COLLAPSIBLE BALL GAME PRACTICE DEVICE.”

FIELD OF THE INVENTION

The present invention relates to a collapsible ball practice device. More particularly, the present invention relates to a collapsible game practice device particularly used for basketball and volleyball wherein portions representing a head and arms may be collapsed into an upper section and all of the sections above a bottom section collapsed into the bottom section for transport and/or storage.

BACKGROUND OF THE INVENTION

To become an accomplished basketball player, many hours of practice are required under conditions simulating as closely as possible actual playing conditions. A person practicing basketball proficiency needs to practice not only making basketball shots from a fixed position into an unobstructed manner, but also practicing shots when there is an obstruction, such as a defensive player in front of him or her. It is often difficult to find a person who will act as a defensive player for extended periods of time and sometimes it is difficult to even find anyone available to participate in a practice session. Accordingly, there is a need for a dummy basketball defensive player for use in practicing the game of basketball. A previous attempt has been made in this area, for example, see U.S. Pat. No. 4,989,862—Curtis. Curtis discloses the use of a basketball dummy player. However, there is also a need to be able to easily transport such a dummy player to a place of basketball game practice. There is also a need to be able to store such a dummy when not in use in a manner which does not take up an inordinate amount of space.

Another ball game where a dummy is particularly useful for practice is that of volleyball. The present invention may be particularly useful in volleyball practice.

SUMMARY OF THE INVENTION

The present invention provides a defensive dummy or ball game practice device particularly useful for basketball and volleyball practice which may be collapsed for transporting the device to and from the place of basketball or volleyball practice and collapsed for storing the device when it is not in use.

In accordance with the present invention, the ball game practice device may be quickly and easily extended or raised to the full height of a normal player and provided with a head and moveable positionable arms.

An advantage of the present invention is that the arms may be positioned in two orthogonal directions thereby allowing the arms not only to be raised and lowered but also to be extended outwardly from the main body to provide a more realistic representation of a defensive player.

Another advantage of the present invention is that the arms may be locked in position by detent mechanisms.

An advantage of the present invention is that the entire device may be quickly and easily collapsed into one of a plurality of sections making up the device.

Briefly and basically, in accordance with one preferred embodiment of the invention, a device is provided for use by practicing ball players which comprises a plurality of sections, each section above a lower section being substantially collapsible into the lower section. Means are provided on an upper portion of each lower section and a lower portion of each upper section to secure each upper section when raised. Mounting means are provided on the bottom of the lower section for releasably securing it to a ball playing surface. Each upper section may be raised and secured for play, and collapsed substantially completely into the lowest section for transport and/or storage.

Additionally, in accordance with the present invention, the collapsible ball game practice device of the present invention may be provided with a head which may be collapsible into the uppermost portion. Additionally, the collapsible ball game practice device of the present invention may be provided with collapsible rotatable arms which may be rotatably mounted to the uppermost section and the arms may be collapsed and slid into the uppermost section such that the arms and head are contained within the uppermost section and all of the upper sections are collapsible into the lowermost section. The arms may be rotatable in two orthogonal directions to provide positioning upwardly, downwardly and outwardly from the main body, and locked in position by detent mechanisms.

BRIEF DESCRIPTION OF THE DRAWINGS

For the purpose of illustrating the invention, there are shown in the drawings forms which are presently preferred; it being understood, however, that this invention is not limited to the precise arrangements and instrumentalities shown.

FIG. 1 is an elevation view of a collapsible ball game practice device in accordance with the present invention.

FIG. 2 is a cross sectional view taken through FIG. 1.

FIG. 3 is a cross sectional view corresponding to the cross sectional line of FIG. 2 with the collapsible ball game practice device of the present invention collapsed.

FIG. 4 is an exploded view of the upper arm as mounted on a slidable structure for slidably receiving it within the uppermost section.

FIG. 5 is a cross sectional view taken along line 5-5 of FIG. 2 except that the arm on the right hand side of FIG. 2 has been collapsed and slid into the uppermost section.

FIG. 6 is an expanded cross sectional view of the area of FIG. 6 shown on FIG. 2 showing a detent mechanism for the arm.

FIG. 7 is a cross sectional view taken along line 7-7 of FIG. 3.

FIG. 8 is an elevation view of another embodiment of a collapsible ball game practice device having arms angularly positionable and lockable in two orthogonal directions in accordance with the present invention.

FIG. 9 is an exploded view of the upper arm angularly adjustable structure in two orthogonal directions as may be used in the second embodiment illustrated in FIG. 8.

FIG. 10 is a partially broken away cross sectional view taken through FIG. 8.

FIG. 11 is a partially broken away cross sectional view taken along line 11-11 of FIG. 10.

FIG. 12 is a cross sectional view corresponding to the cross sectional line of FIG. 10 with the collapsible ball game practice device of the present invention collapsed.

FIG. 13 is a cross section view taken along line 13-13 of FIG. 12.

FIGS. 14, 15, 16, 17 and 18 are cross sectional views taken through the structure on the right hand side of FIG. 8 illustrating the angularly adjustable structure for the second orthogonal direction wherein the arm shown in dotted lines with its projections riding in a channel or track and releasably lockable in various recesses for various angularly adjusted positions of the arm.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring now to the drawings in detail, wherein like numerals indicate like elements, there is shown in FIG. 1 a collapsible ball game practice device 10. The device 10 is shown in FIGS. 1 and 2 in its extended form where it may be used for basketball practice on the basketball court or other basketball playing surface or used for volleyball practice on a volleyball court. Device 10 include sections 11, 12, 13, 14 and 15. Section 11 may be referred to as the lowermost section and section 15 may be referred to as the uppermost section. Sections 12, 13, 14 and 15 may be collapsed, when the arms are collapsed and slid into uppermost section 15, into lowermost section 11 as seen for example in the cross sectional view of FIG. 3. Sections 11 through 15 may be made of any suitable fairly rigid material which has sufficient flexibility to enable resilient detent projections to operate. A presently preferred embodiment of the present invention would be comprised of plastic, such as polyurethane. However, other suitable materials may be utilized.

Sections 11 through 15 may be of any suitable mating shape in cross section, such as round or other shapes, but preferably a non-round somewhat flattened ellipsoidal shape as illustrated in FIGS. 5 and 7 may be used. If sections 11 through 15 where round, it would be preferable to provide some type of a vertical detent mechanism or channel to prevent rotation of one section with respect to its adjacent section or sections. Such channels are provided, although unnecessary with the flattened ellipsoidal section shape, as channel 82 comprised of side rails 84 and 86 as illustrated in FIG. 7 on Section 11.

Although five sections are illustrated as sections 11 through 15, it is understood that more or less sections may be utilized. In a presently preferred embodiment, each section may have a height of approximately 12 inches. However, it is understood that the height of the sections may vary within the range of 10 inches up to 18 or more inches. The desired height of the sections may be selected to produce a height of the combined sections between 5 and 7 feet as desired. Furthermore, if less sections were used, each section would be of an increased height whereas if more sections were utilized, the height of each of section may be decreased somewhat. As may be seen from FIG. 3, when completely collapsed, all of the sections, arms and head would be contained within the lowermost section, and it may be desirable to have a reduced height for each section with more sections.

The lowermost section, section 11, may be provided with mounting means on the bottom of section 11 for releasable securing it to a basketball playing surface, such as suction cups 16, 17 and 18. However, it is understood that other mounting means may be utilized to secure device 10 to a basketball playing surface.

As may be best seen in FIG. 2, there is means on the upper portion of each lower section, such as openings 21, 22, 23 and 24 and projections on the lower portion of each upper section, such as projections 32, 33, 34 and 35 to secure each upper section when raised. Other various types of detent structures may be utilized to hold the upper sections in the raised position and release them for lowering, but the holes 21-24 and mating projections 32-35 are presently preferred.

Uppermost section 15, and it is understood that it could be a different section if more or less sections were utilized, is provided with a head structure 20. Head structure 20 may be provided with similar detent mechanism which includes projections 36 on the lower end of head structure 20 and two pairs of mating openings 26 and 27 so that the head may be secured in either its raised or extended position and also in its collapsed position for carrying or storage. Head structure 20 is provided with a handle 30 which may be utilized for carrying the entire device when collapsed as shown in FIG. 3.

Head 20 may be provided with a decal, painting or other facsimile or representation of a face of either an anonymous person or a famous basketball player. Similarly, sections 11 through 15 or other number of sections may be provided with decals, artistic paintings or other representation of a body, jersey and/or shorts of a particular basketball team. The arms, to be discussed, may also be provided with decals or artist work as desired.

Referring now most particularly to FIGS. 1 and 2, device 10 is shown as being provided with collapsible arms comprised of sections, a right arm being comprised of sections 41, 42, 43, 44, 45 and 46 (shown in left side of FIG. 2) and a left arm comprised of sections 51, 52, 53, 54, 55 and 56. Arm sections 41 and 51 are rotatably mounted to a slide carrier mounted within uppermost section 15. Arm sections 42 through 46 are slidably collapsible into arm section 41. Arm sections 52 through 56 are slidably collapsible into arm section 51. The arm sections 41 through 46 and 51 through 56 are provided with detent mechanisms for securing the arm sections in their extended position. One example of such a suitable detent mechanism is shown in FIG. 6. As illustrated in FIG. 6, arm sections 43 and 44, as well as the other arm sections, may be provided with mating indentations 47 and 48 which may be snapped into place and forcibly released when it is desired to collapse the arms.

An exploded view of the rotatable mounting structure of uppermost arm section 41 is shown in FIG. 4. As may be seen in FIG. 4, arm section 41 may be provided with a circular disk 60 having one or more projections 62 which mate with openings 64 contained on a second disk 66 mounted on a slide carrier 68. Disk 60 is mounted to disk 66 by means of a screw, rivet or other suitable fastener 58. Slide carrier 68 may be provided with guides or slide bars 70 and 72 which ride in channels or tracks. Guide or slide bar 70 rides in channels or tracks 69 and 71 and guide or slide bar 72 rides in channels or tracks 73 and 74. The channels or tracks extend across the entire width of the upper section 15 of device 10. The slide carrier for upper arm section 51 on the other side of the device would ride in the remaining channels shown, that is, channel 75 and 76 on the one side and channel 77 and 78 on the other side. This structure is best illustrated by viewing FIG. 4 in conjunction with FIG. 2. For example, as may be seen in FIG. 2, track or slide bar 80 of slide carrier 88 may be seen riding in channels 77 and 78. By providing a double set of channels spaced one above the other, the slide carriers 68 and 88 may be completely slid into uppermost section 15 allowing the collapsed arms to be contained within uppermost section 15. This is illustrated in FIG. 3. Further, FIG. 5 illustrates the arm on the right side of the page as being collapsed and contained within uppermost section 15 while slide carrier 68 is in its extended position with upper arm section as well as the remaining arm sections 42-46 being in their extended position. The arms may be positioned in various locations, such as vertically as shown in FIG. 1 or any other position 360 degrees around as provided by the disks 60 and 66 illustrated in FIG. 4.

When the extended or raised sections, as shown in FIGS. 1 and 2, are desired to be collapsed, the arms are collapsed, and the slide carriers 68 and 88 carrying the arms are slid into uppermost section 15. The sections may then be collapsed by depressing the projecting members. For example, by depressing projecting members 35 and pushing them back out of their openings 24, uppermost section 15 may be collapsed into section 14. By depressing projecting member 34 out of opening 23, section 14 may be collapsed into section 13. In a similar manner, section 13 may be collapsed into section 12 and then section 12 collapsed into section 11 resulting in all of the sections 12 through 15 being collapsed into section 11. As the sections are collapsed, the projecting members 32-35 ride in channels, such as channel 82 for section 11 which is comprised of side rails 84 and 86. Each section has such channels. A transverse member, such as member 90 for channel 82, is provided across a lower portion of each channel wherein the corresponding projecting member, such as projecting member 32 on section 12, may be retained. In this manner, a detent mechanism is provided when the unit is collapsed holding all of the sections in their collapsed condition for transport when the device is picked up by its handle 30. Transverse member 92 is provided in the channels in section 12 and transverse member 94 is provided in the channels in section 13. Similar transverse members are provided in the channels in the other sections. The projecting members in connection with the transverse members in the channels comprise a second detent mechanism which is used to hold the sections in their lowered or collapsed position for carrying.

In accordance with the present invention, the collapsible basketball game practice device may be readily carried by handle 30 in its collapsed form to a place for basketball practice, such as a basketball court, may be readily expanded or raised by lifting or forcing the sections to their raised positions and locking them in place by the detent mechanisms, sliding the arms out of uppermost section 15, extending the arms, positioning the arms to their desired defensive position and raising the head structure 20 of the device. The device may be temporarily or releasably secured to the basketball playing surface by suction cups 16, 17 and 18 for other suitable releasable securing means. During play, the position of the device may be changed and/or the position of the arms may be changed. Upon completion of the practice session, the device may be quickly and easily collapsed for carrying back to the place of storage. In collapsing the device, the arms would be collapsed, once collapsed, the arms would be slid into uppermost section 15, head structure 20 would be collapsed into uppermost section 15, section 15 collapsed into section 14, the combined sections 14 and 15 would be then collapsed into section 13, the combined sections 13, 14 and 15 would then be collapsed in section 12 and finally the combined sections 12 through 15 with the head and arm structure would be collapsed into lowermost section 11. With the second detent or lower detent mechanism holding the sections in their collapsed position, the complete device may be carried by its handle 30.

Referring now to FIGS. 8 through 18, there is shown another embodiment of the present invention which is the same as the embodiment shown and described with respect to FIGS. 1 through 7, but is provided with arms which are angularly positionable in two orthogonal directions and releasably lockable in these positions, such as by detent means. In FIGS. 8 through 18, the same numerals will be applied in these figures as previously described for the structure which remains unchanged and this structure will not be described in any detail again. The description with respect to FIGS. 8 through 18 will be concentrated on the arms being adjustably angularly positionable and releasably lockable in two orthogonal directions.

Referring now particularly to FIG. 8, there is shown another embodiment comprising collapsible lockable and extendable lockable sections 11 through 15 as previously described. Lowermost section 11 is provided with means for releasably securably mounting 16, 17, 18 the dummy to a surface, such as a basketball surface. These releasable securable mounting means may be suction cups 16, 17, 18 or any other suitable releasable securable mounting means. Collapsible basketball and volleyball practice device or apparatus 110 may also be provided with a collapsible lockable and extendable lockable head 20 as previously described. Head 20 may also be provided with a handle 30 (FIG. 10) as previously described.

Practice device or dummy 110 is provided with at least one arm and preferably provided with a right arm 140 comprised of sections 141, 142, 143, 144, 145 and 146 which are extendably lockable and collapsibly lockable as previously described with respect to the first embodiment. Basketball practice dummy 110 is preferably provided with two arms, including a left arm 150 comprised of sections 151, 152, 153, 154, 155 and 156 which are lockably extendable and lockably collapsible as previously described. As illustrated in FIG. 8 in dotted outlines, arm 150, and both arms would be the same, is angularly adjustable downwardly, upwardly and in any direction in 360 degrees of rotation and also angularly adjustable outwardly from the main body of dummy comprised of sections 11 through 15. In other words, the arms 140 and 150 are angularly positionable and releasably lockable in positions in two orthogonal directions, thereby enabling the dummy to more realistically represent the arms of a defensive player.

Referring now more particularly to FIGS. 9 through 18, wherein like numerals continue to indicate like elements, there is shown particularly in FIG. 9 an enlarged broken away view of uppermost arm section 141 as it is pivotally attached by fastener 58 which acts as a pivot point between disk 160 and second disk 66 mounted on slide carrier 68. As previously described, disk 66 has openings or recesses 64. Disk 66 mates with disk 160 mounted on uppermost arm section 141 and is provided with projections 162 which mate with the recesses or openings 64 as previously described. As previously described, the projections 162 mating with the recesses or opening 64 on disk 66 provide a detent mechanism which allows, when the arm is rotated in one direction to be releasably lockably secured in any position where a projection 162 is able to mate with a recess 64.

Releasable lockable angular positioning of arm 140 is provided by the angular adjustment available between arm section 142 and 141 in a second direction which is orthogonal with respect to the direction of angular adjustment provided by disks 160 and 66. The angular adjustment between arm sections 141 and 142 is provided by one of the sections having a channel or track with a plurality of recesses positioned therein and the second member having a projection which rides in the channel and is releasably lockable in the detents or recesses in the channel or track. In a presently preferred embodiment as illustrated in FIG. 9 and the other figures, particularly FIGS. 14-18, it is shown that member 141 has U shaped channels or tracks 112 and 114 formed in opposing surfaces of the interior surface of arm section 141. Located within these channels are a plurality of opening or recesses 116. The mating surfaces of arm section 142 are provided with projections or pins 118 that ride in channels 112, 114 and are releasably lockably positionable within recesses 116. FIGS. 8 and 10 through 18 show the operation of the second embodiment of the basketball or volleyball practice dummy 110 in various conditions of operation. Particularly, FIG. 10 illustrates the dummy with the arms 140 and 150 in the straight down position with section 142 lowered down in section 141, and arm section 152 lowered down in arm section 151 where the arms 140 and 150 may be angularly positioned outwardly from body sections 11 through 15. The operation of projections in the channels or tracks with recesses or openings are further illustrated in some detail in FIGS. 14 through 18.

FIG. 11 is a cross sectional view taken along line 11-11 of FIG. 10 illustrating the projections 118 in the recesses in channels 112 and 114.

FIG. 12 is a vertical cross sectional view taken through a collapsed dummy 110 in accordance with the present invention.

FIG. 13 is a cross sectional view taken along line 13-13 of FIG. 12 which shows that the arms 140 and 150 may be rectangular in cross section, and are preferably square in cross section.

FIGS. 14 through 18 are vertical cross sectional views taken through the upper section of arm 150 as illustrated in FIGS. 8 and 10 for various positions of arm section 152 with respect to arm section 151. These Figures further illustrate the projections or pins of arm section 152 in various recesses of the U channel in arm section 151 for positions of vertical, 45 degrees and horizontal of the arm. The arms may be rotated to achieve straight up and straight down or 45 degrees up or 45 degrees down by rotation of disk 170. Referring more particularly to FIGS. 14 through 18, arm section 152 is shown in each figure in dotted outline. The substantially U shaped channel 122 is shown in each of the figures with recesses or openings 126. The specific recesses are identified in these figures as 126A, 126B, 126C, 126D, 126E, 126F and 126G.

The X's in the circles in FIGS. 14 through 18 indicate the projections or pins on arm section 152.

As illustrated in FIG. 14, projections 128 are in or are releasably locked in recesses 126A and 126B. In the position as shown in FIG. 14, the arm sections 152 through 156 may be collapsed into arm section 151 and may be retracted into upper most body section 15 as previously described with respect to the first embodiment.

FIG. 15 illustrates projections 128 in recesses 126C and 125D. FIG. 15 merely illustrates a transition phase wherein arm 152 is being lowered down in arm section 151.

FIG. 16 illustrates projections 128 of arm section 152 being releasably locked in recesses 126E and F. In the positions of FIGS. 14, 15 and 16, arm 152 as well as remaining arm sections 153 through 156 may be positioned within the vertical plane of straight down, straight up, forward, backward or any other position in that plane as determined by the recesses in disk 66 on the slide carrier 68 and projections 172 on disk 170.

As illustrated in FIG. 17, projections 128 of arm 152 are located in recesses 126G and 126D. In this manner, arm 152 may be positioned in an angle away from body sections 11 through 15, as illustrated at positions 174 and 176 in FIG. 8. As illustrated in FIG. 8, 174 is downardly directed at an angle of about 45 degrees, although it may be selected to be any other suitable angle by adjusting the position of the recesses in channel 122. Similarly, by rotating disk 170, the arm 150 may be positioned in various positions from downardly upwardly, forwardly, backwardly and various positions inbetween depending upon the position of recesses 64 into which projections 172 are received. Recesses 64 referred to herein are given the same number as the recesses 64 on disk 66 shown in FIG. 9 for the right arm.

When projections 128 are positioned in recesses 126B and 126F as illustrated in FIG. 18, arm section 152 and arm 150 point horizontally outwardly and away from body section 15 as illustrated at 178 in FIG. 8.

The present invention may be embodied in other forms and is not limited to the particular embodiments shown. For example, various detent mechanism may be utilized. Various shapes may be utilized for the collapsible sections. The arms which are shown as round or square may be other shapes.

In view of the above, the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof and, accordingly, reference should be made to the appended claims, rather than to the foregoing specification as indicating the scope of the invention. 

1. An apparatus, comprising: a plurality of dummy basketball or volleyball body sections, each body section above a lower body section being substantially slidably collapsible into the lower sections; a head section having a cross sectioned dimension smaller than a dimension of said body sections; an uppermost dummy body section being provided with a recess for receiving said head section corresponding to a dummy head; means for securing said head section in an extended position and in a contracted position; said uppermost body section being provided with means for slidably receiving at least one arm, said at least one arm being comprised of a plurality of slidably collapsible section, said at least one arm being slidably collapsible into said uppermost body section; means for securing said dummy body sections in an extended position and in a contracted position; means for securing said arm sections in an extended condition and in a contracted condition; said at least one arm being angularly positionable in various positions in two orthogonal directions to act as a defensive basketball or volleyball arm; a handle for carrying said apparatus when said body sections are in a collapsed condition; and wherein said apparatus may be extended with said at least one arm positioned in two orthogonal directions for use as a dummy in the practice of basketball or volleyball and contracted for carriage by said handle and storage.
 2. An apparatus in accordance with claim 1 including a first means and a second means for angularly positioning said at least one arm in various positions in two orthogonal directions, said first means including pivot means for pivoting in a first plane with detents at an upper end of said at least one arm and said second means including angular adjustable structure near said upper end of said at least one arm for angular adjustment in a second plane which is orthogonal to said first plane.
 3. An apparatus in accordance with claim 2 wherein said second means includes a pair of members, one member having projections which rides in a track in a second member and wherein said projections are releasably lockable in recesses formed in said track.
 4. An apparatus in accordance with claim 3 wherein said track is substantially U shaped.
 5. An apparatus in accordance with claim 4 wherein said second means includes a pair of U shaped tracks.
 6. An apparatus in accordance with claim 1 wherein each body section has a height in the range of approximately 10 to approximately 18 inches.
 7. An apparatus in accordance with claim 1 wherein said means for securing said dummy body sections in an extended condition comprises means on the upper portion of each lower body section and the lower portion of each upper body section to secure each upper section when raised in the form of a detent mechanism.
 8. An apparatus in accordance with claim 7 wherein said detent mechanism is comprised of an opening in the upper portion of each lower body section and a projection on the lower portion of each upper body section.
 9. An apparatus in accordance with claim 8 wherein said projection may be depressed to unsecure and lower an upper section.
 10. An apparatus in accordance with claim 1 wherein said mounting means on the bottom of the lowest body section is comprised of suction cups.
 11. An apparatus in accordance with claim 1 wherein said collapsible sections of said arm may be secured in an extended position by a detent mechanism.
 12. An apparatus in accordance with claim 1 wherein said collapsed arms may be slid into the upper section and the upper section slid into the section below it with the entire device being collapsed to the height of a single body section.
 13. An apparatus in accordance with claim 1 wherein each of said plurality of sections is matingly non-round in plan cross section.
 14. An apparatus in accordance with claim 1 including a second detent mechanism for securing the plurality of body sections in a contracted condition wherein all of the upper body sections are collapsed into a lowermost section. 